Port over legacy generators from PHP/old RandomAPI Beta to new RandomAPI beta

Author: keitharm

routes/api.js

@@ -1,7 +1,9 @@
 var fs      = require('fs');
+var qs      = require('qs');
 var express = require('express');
 var router  = express.Router();
 var Request = require('../models/Request');
+var legRequest = require('request');
 
 var latestVersion = '1.1';
 
@@ -13,7 +15,52 @@ router.get('/:version', (req, res, next) => {
   genUser(req, res, req.params.version);
 });
 
+let legacy = {
+  "0.1": {
+    hash: "916ad3d01e4040cc0a67e0367f887f19",
+    max: 5
+  },
+  "0.2": {
+    hash: "74af1a1572d1065ba63f11afb6ba34ee",
+    max: 5
+  },
+  "0.2.1": {
+    hash: "d462956eec6157ab03164c565682f3d6",
+    max: 5
+  },
+  "0.3": {
+    hash: "cc4b5abca158d7fe0bbb92dcd591114c",
+    max: 10
+  },
+  "0.3.1": {
+    hash: "52432a28e766d8142b811436742ec905",
+    max: 10
+  },
+  "0.3.2": {
+    hash: "7c25fc35021cdab8bcc0bc20d352a064",
+    max: 10
+  },
+  "0.4": {
+    hash: "884bcc24441f39bddfe17e12a080ab7f",
+    max: 20
+  },
+  "0.4.1": {
+    hash: "127ee4298ee834d84b33b4ff6f544ed0",
+    max: 100
+  },
+  "0.5": {
+    hash: "4111cf8ceae827c5c7659e2ed6238a18",
+    max: 100
+  },
+  "0.6": {
+    hash: "418b98dfb9a79a966bf4bb951665856f",
+    max: 100
+  }
+};
+
 function genUser(req, res, version) {
+  req.query.fmt = req.query.format;
+
   var ip = req.headers['cf-connecting-ip'] || req.headers['x-real-ip'] || req.headers['x-forwarded-for'] || req.connection.remoteAddress;
 
   if (clients[ip] >= settings.limit) {
@@ -25,6 +72,55 @@ function genUser(req, res, version) {
 
   version = version || latestVersion;
 
+  // Legacy versions
+  if (version in legacy) {
+    req.query.results = req.query.results || 1;
+
+    var results = req.query.results;
+    if (results > legacy[version].max || results < 1 || isNaN(results) || results % 1 !== 0) {
+      results = 1;
+      req.query.results = 1;
+    }
+
+    if (!(ip in clients)) {
+      clients[ip] = Number(req.query.results);
+    } else {
+      clients[ip] += Number(req.query.results);
+    }
+
+    return legRequest(`https://beta.randomapi.com/api/${legacy[version].hash}?noinfo&${qs.stringify(req.query)}`, (err, ret) => {
+      if (req.query.fmt === 'json') {
+        res.setHeader('Content-Type', 'application/json');
+      } else if (req.query.fmt === 'xml') {
+        res.setHeader('Content-Type', 'text/xml');
+      } else if (req.query.fmt === 'yaml') {
+        res.setHeader('Content-Type', 'text/x-yaml');
+      } else if (req.query.fmt === 'csv') {
+        res.setHeader('Content-Type', 'text/csv');
+      } else {
+        res.setHeader('Content-Type', 'text/plain');
+      }
+
+      res.setHeader('Cache-Control', 'no-cache');
+
+      var payload = {
+        'bandwidth': ret.body.length,
+        'total': req.query.results
+      };
+      payload[version.replace(/\./g, '_')] = req.query.results;
+
+      Request.findOrCreate({date: getDateTime()}, payload, (err, obj, created) => {
+        // Update record
+        if (!created) {
+          Request.update({date: getDateTime()}, {$inc: payload}, (err) => {
+
+          });
+        }
+        res.send(ret.body)
+      });
+    });
+  }
+
   // Version doesn't exist
   if (typeof Generator[version] === 'undefined') {
     res.sendStatus(404);
@@ -80,7 +176,7 @@ function genUser(req, res, version) {
       'bandwidth': output.length,
       'total': results
     };
-    payload[version.replace('.', '_')] = results;
+    payload[version.replace(/\./g, '_')] = results;
 
     Request.findOrCreate({date: getDateTime()}, payload, (err, obj, created) => {
       // Update record
@@ -96,7 +192,7 @@ function genUser(req, res, version) {
           fs.unlink(name);
         });
       } else {
-        // Hacky PS extension formatting 
+        // Hacky PS extension formatting
         if (req.query.extension === "true") {
           output = JSON.parse(output);
           var extObj = {